Egypt Engulfed in Fresh Protests

CAIRO—Tens of thousands of President Mohammed Morsi's backers and opponents held competing rallies in Egyptian cities Friday, providing a preview to nationwide protests planned for Sunday to seek Mr. Morsi's removal.

Violence in Alexandria, Egypt's second-largest city, left at least two people dead, including one American, and 143 people injured, according to Egyptian state media. Rioters set fire to offices of Mr. Morsi's Muslim...